Final answer:
Before drilling in metal, mark the drilling spot, apply a lubricant like motor oil, use a tray to catch shavings, drill with steady pressure, clean the surface afterward, and wear safety equipment.
Step-by-step explanation:
Before drilling in metal or other hard surfaces, it is important to prepare the surface properly to ensure a smooth drilling process and to prevent damage to the material or the drill bit. The first step is to mark the spot where you will drill with a punch to create a small indentation, which will help the drill bit to stay in place when you start drilling. Next, apply a small amount of lubricant, such as motor oil, lighter fluid, or a special penetrating oil, to the area to reduce friction and heat buildup, which can damage both the drill bit and the material being drilled. Using oils also helps in removing metal shavings more easily. It is also advisable to have a container like a large flat tray with raised sides, such as a baking tray, to catch any metal shavings or excess oil for a clean working environment.
During the drilling process, it's important to use steady pressure and keep the drill at a consistent speed to prevent the bit from binding or breaking. After drilling, the surface should be cleaned to remove any remaining lubricant and metal shavings. In addition to these preparations, ensure that you are wearing appropriate safety equipment like goggles or a face shield to protect yourself from any flying debris. Lastly, if using a camera to document the process or for precision work, be sure it is placed where it won't be harmed by metal shavings or lubricant splatters.